Bar support



Nov. 6, 1934.

R. R. lROBERTSON BAR SUPPORT Original Filed July l1. 1930 Patented Nov. 6, 19,434(

` NUNITED STATES `.lvxrrnv'r f OFFICE n n JBARsvlnlrni` f i L Robert R. Robertson, Chicago Heights, Ill.

Application July 11, 1930, `Serial No. 467,148 Renewed Api-i12, 1934 1 Claim? (01.94-8) Thisv invention relates to an improved reinthe marginal section of the vconcrete body porforcing `bar support and more particularly to tion of the road. supports for holding marginalwsupporting bars Other andfurther important objects of this infposition at vdiierent elevations in the longiinvention will be apparent from the disclosures H5 tudinal` margins `of a concrete road and at a in the specification and the accompanying 60 predetermined distance above the top surface drawing. ofthe roadV sub-grade. ,i 'I'he invention (in a preferred form) is illus- It iswan `object of this invention to provide trated in the drawing and hereinafter more fully anr improved marginal bar support comprising described.

510 a stake having a spacing arm for contact with a On Athe drawing: 65. road form whereby a bar supporting member Figure 1 is a fragmentary vertical cross secon ,the stake is provided with bar retainingrntionof a concrete road having embedded therein gers `adapted to be moved into lockingposition improved marginal reinforcing bar supports emto `retain bars in place in spaced relation at bodying the principles of this invention. i

`1,6 given distances above the road sub-grade and at Figure 2 is a fragmentary top plan view taken 70.

predetermined distances from the side ofthe on line II-II of Figure 1. road.; n Y Y `Figure 3 is a side elevation of an improved .It is also an object of this invention to promarginal reinforcing bar Support embodying the vide an improved marginal reinforcing bar supprinciples of this invention.

20 port: of flat bar metal having rigidly engaged l Figure 4 is a front elevation of the support 75l ,or Jforrnedythereon i a flange member having illustrating the retaining ngers in open posispaced bar receiving ,openings thereiny and a tion. i stop flange formed ythereon forV coaction with yFigure '5 iS a detailed Sectional View 0f the the topnsurface of. the road sub-grade for the support taken on line V-V of Figure 3.

H25 purpose of properly positioning the supportso i Figure 6 iS a fragmentary Side elevaiien Of a 80 that the reinforcing bars carried thereby may mOdiiied fOIIn 0f SUDDOrt. be positioned at predetermined elevations and AS ShOWn 0n the drawing! at set distances fromthe margin of a body sec- The reference numeral 1 indicates a concrete tionlof a concrete road. v f road sub-grade having mounted thereon longi- 30 f It is' a further object of this invention to protudnally disposed and laterally spaced forms 2 85 vide4 a marginal reinforcing bar support conbetween which concrete is to be poured upon the structed of flat metal `to prevent' rotation of Sub-grade to ferm the bOdY Section 3 Of the Conthe support when engaged in e, eenereteread, `crete road. For the purpose of reinforcing the said support n including en; apertnred bar sup.. longitudinal margin of the body section 3 of the *35. Derting Sheet metal flange having oneV margin concrete road it is desirable to embed marginal 90 -thereof bent and folded inclamping relation reinforcing 1`0dS 01' bare 4 ai Spaeed eleVatOnS around a portion of the at metal stake portion above ihe li701@ Surface 0f the IOad Sub-grade 1 ofthe support, with Said apertured flange newand at apredetermined distance from the inner ing .flexible fingers struck therefrom and nor..- SulfaCeS 0f the fOImS 2! FOI SUPDOYting the red() mally positioned t0 permit marginal reinforce inforcing rods in place at spaced intervals Within 95 `ing bars te be engaged in meV Openings and the" longitudinal margin of the concrete `section 3 adapted to be bent into clamping position after AOfine TOad a plurality 0f improved marginal rethev bars are in place to retain the :same against infOlCing bar SuppOltS are engaged in the road removal from the Supportl 4 `sub-grade in contacting or coacting relation i .Itis an importantV object of this invention to With the inner faces 0f the OIInS 2 aS Clearly 100 .provide an improved type of marginal reinforcillustrated in Figures 1 and 2 0f the drawing. fing bar support constructed of metal. embrac- .i The ViInDI'OVed marginal reinforcing bar Suping a `stake and an integralspacing arm with `100142....COHllQliSeS a Stake 01 Din 5 constructed of said stake havingY integrally formed or rigidly fiat metal and having the 10Wer end thereof 5Q secured thereto an apertured .bar -rsupporting Chamfeled. 01 beveled 0r Otherwise peinted at 6 105 flange* provided with barilocking members fand S0 fOlIn a Doin' 011 tip t0 permit the Stake t0 be .with'a stop nangefor limiting the insertionof readily driven into the sub-grade 1. The stake thestake portion ofthe support into a road or pin is constructed of nat metal so that sub-grade for the purposeof properlyspacing Whengthe same is embedded in the concrete or 55 ,thewmarginal reinforcing bars vertically within driven into the road sub-grade 1 it will not ro- 110 tate or turn. The upper end of the at metal stake or pin 5 is bent at right angles to provide a spacing arm 7 the end of which is adapted to contact the inner surface of a concrete form 2 when the pointed end of the stake 5 is driven into the road sub-grade as illustrated in Figure 1.

Rigidly engaged on the upper portion of the fiat metal stake 5 below the arm 7 is a bar supporting member constructed of sheet metal one longitudinal margin of which is bent and formed around the flat body section of the stake 5 and.

is rigidly clamped thereon against movementv to. form a supporting sleeve or tube 8 having a longitudinal slot 9 formed therein. d

Rigidly formed at right angles along one longitudinal margin of the slot 9 and projecting in a direction opposite from the direction of projection of the spacing arm 7 is a bar supporting flange or plate 10 the lower end of which is bent outwardly at right angles to provide a stop flange or foot 11. The stop flange or foot 11 is also positioned at substantially right anglesto the front face of the at stake 5 as illustrated in Figure 3 and acts as a stop for limiting the driving of the pointed end of the stake 5 into the road sub-grade 1.. rI'he flange plate 10 is provided with a plurality of bar supporting apertures or notches 12 which open through the outer longitudinal edge of the flange 10.r The ange 10 is stamped or cut so as to leave a retaining linger or lug 13 at the outer end of each ofthe notches or openings 12. The retaining finger 13 is normally bent out of the plane of the flange 10 as illustrated in Figure 4 to leave an opening or mouth for each of the openings 12 to permit a marginal reinforcing rod or bar 4 to be inserted into the opening similar tothe arrangement illustratedin Figure 1. After a marginal reinforcing bar 4 is engaged in one of the openings of the supporting plate or flange 10 the retaining lug or locking finger 13 is bent inwardly from the position illustrated in Figure 4 to be disposed substantially in the plane ofthe sup.- porting flange 10 to substantially close the open end of the notch 12 thereby locking or retaining the reinforcing bar, 4 in position.

As illustrated in Figure 3 the bar supporting flange 10 is provided with two sets of openings or notches 12 for the purpose of supporting a pair of marginal reinforcing bars or rods 4 in spaced parallel relation one above the other when said rods are supported by means of a plurality of spaced supports similar to the arrangement illustrated in Figure 2.

In practice the improved supports are driven into the sub-grade 1 in a line parallel to the marginal forms 2 with the outer ends of the spacing arms 7 in contact withthe inner faces of the forms 2. Stakes 5 are driven into the sub-grade 1 until the stop flange or foot 11 of each of the stakes comes into contact with the top surface of the sub-grade to limit the further driving of the stake downwardly. The improved supports thus mounted in position upon the subgrade with the arms of the support contacting the inner surface of the form 2 are arranged to receive marginal reinforcing rods 4 inserted in the open notches l2, with saidrods extending from one support to another. The reinforcing rods 4 are thus supported in parallel relation at predetermined distances above the top surface of the sub-grade and at required distances from the side of the road. After the marginal reinforcing rods are engaged in the` supports the retaining fingers or lugs 13 are bent downwardly from the position illustrated in Figure 4 into closed position as illustrated in Figure 1 thereby locking or retaining the marginal reinforcing bars in place.

As illustrated in Figure 1 of the drawing a row of marginal reinforcing bar supports is engaged on the sub-grade adjacent the inner side of each of the forms 2 to support marginal reinforcing bars at spaced distances above the sub-grade and to the inside of the forms 2. Concrete is then vpoured upon the sub-grade and between the forms 2 to form the body section 3 of the road. As the concrete is deposited in place it flows outwardly toward the form thereby causing the reinforcing rods4 to be pushed against the supporting sleeves 8 forming part of the bar supports. 'I'he flat formation of the stakes 5 and the spacing arms 7 forming a part thereof prevent the supports from rotating or twisting after they areengaged in position. -It will furthermore be noted that the square outer ends of the spacing arms 7. are adapted to bear flatly against the inner face of the side forms 2 to further act as a means for preventing the supports from rotating or twisting out of position.

Figure 6 illustrates a modifiedv form of support, of unitary construction comprising an angle body section consisting of a stake flange 14 and a bar supporting plate or flange 15 disposed at substantially right angles thereto. The lower end of the stake flange 14 is cut away or tapered at 16 and at its lower end joins the lower end of a tapered section 17 formed on the lower end of the supporting flange 15. The two tapered portions 16 and 17 form a spike or tip to facilitate driving the support into a road sub-grade. Integrally formed at right angles to the upper end of the stake flange 14 is a spacing arm 18 which is adapted, when the support is in positionV to have the end thereof in contacty with the inner surface of the concrete form 2 similar to the. arrangement. illustrated in Figurev 1` 'Ihe spacing arm serves to hold the body portion of the support properly spaced from the side of the road for the supporting of marginal reinforcing members.

The. supporting flange 15 is provided with a plurality of bar supporting openingsor notches 19 which open through the outer longitudinal edge of the flange 15. The flange 15 is stamped or cut so as to leave a retaining finger or lug 20 at the mouth or outer end of each of the openings 19. The fingers 20 are normally bent out. of the plane of the flange 15 to permit the insertion of marginal reinforcing bar or rods in the openings 19. After the placing of the reinforcing members inthe openings 19, the ngers 20 are bent into thev plane of the flange 15 to thereby close the mouths of said openings 19 to Alock or retain the reinforcing members in position.

Struck from the supporting flange 15 at a point between the. lower openings 19 and the tapered end 17, is a stop flange or foot 21, which serves as a stop for limiting the driving of' the tapered end of the support into the road sub-grade, to properly position the reinforcing members atrequired elevations above the subgrade to be embedded in concrete.

It will of course be understood thatvarious details of construction may be'varied through a wide range without ydeparting from the principles of this invention and it is therefore not the purpose tol limitl the patent granted hereon 150 otherwise than necessitated by the scope of the appended claim.

I claim as my invention:

A reinforcing bar support adapted to cooperate with a marginal road form, said support consist- `ing of a at metal stake having its width decreased at one end to provide a driven point and having a portion bent normal to the longitudinal axis of said stake to provide an arm adapted to rest against a road form, the other end of said. stake being substantially straight to provide ROBERT R. ROBERTSON. 

